June 2018
Intermediate to advanced
478 pages
10h 52m
English
Content preview from IBM Db2 11.1 Certification Guide
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MDC
Multidimensional clustering (MDC) provides a method for clustering data in tables along multiple dimensions in a flexible, continuous, and automatic way. MDC allows a table to be physically clustered on more than one key or dimension, simultaneously. Like any other table, an MDC table can have views, MQTs, referential integrity, triggers, RID indexes, and replication defined for the table. Range queries involving any combination of the specified dimensions of the clustered table will perform better, because they will only need to access those pages that have records with the specified dimension values.
When an MDC table is created, the dimensional key (or keys) along which to cluster the table's data are specified. Each of the specified ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.